RT Journal Article SR Electronic T1 Seventh International Congress of Human Genetics: Molecular genetics JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 123 OP 124 DO 10.1136/jmg.24.2.123 VO 24 IS 2 A1 Williamson, R YR 1987 UL http://jmg.bmj.com/content/24/2/123.abstract AB